Diseases and Conditions

Know how to prevent, treat and control the symptoms of various diseases and medical conditions. We explain what's happening in your body when disease strikes, and what you can do to feel better faster.

Topics to Explore

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Will there be new STDs in the future?

Syphilis, gonorrhea, chlamydia -- no one wants to hear those words from their doctor. Are these all we have to worry about, or are there other sexually transmitted horrors in the making?

10 Deadly Agents the CDC Works With

Modern medicine may be here, but there are still plenty of infectious diseases to combat, and the CDC is really busy doing that. Get to know 10 of these public (health) enemies.

5 Ways You Still Can't Get Ebola

You may not know how to pull on personal protection equipment like a health care pro, but we bet you've learned a lot about Ebola and its transmission since it hit the news. Or have you?

How Leper Colonies (Leprosaria) Work

Leprosy was the AIDS of the first millennium – a disfiguring disease that struck terror since people thought it was easy to contract. Patients were banished to live in colonies. What was life like there?

Is wheat toxic?

Some people in the anti-wheat movement say that the grain has compounds in it that make it addictive. But is this true?

10 Diseases That Used to Be Death Sentences

Pneumonia and diarrhea used to be bigger killers, but nowadays, developed countries can successfully treat them. Which other diseases are no longer death sentences?

5 Germs You Really Can Get From a Toilet

No one thinks public toilets are altars of tidiness, but are they actually dangerous? The odds of catching something from a public bathroom are low -- but it's possible.

How Ebola Works

You may think you know Ebola. You probably don't. The infectious disease has killed thousands in West Africa and has reappeared on the continent once again. What have scientists learned since the last outbreak?

Colon Cancer: The Silent Killer

Colorectal cancer, or colon cancer, is a common type of cancer found in both men and women. Find out what you need to know about this form cancer.

10 Worst Ways to Die

C'mon. You know you've thought about this. We have, too. Want to see how your list compares with ours?

8 Step Plan to Lower Your Cholesterol

Do you need to lower you cholesterol? Here is an eight step plan to lower your cholesterol.

Frequently Asked Questions About Proteus Syndrome

In 1998, a panel of doctors at the National Institutes of Health surmised that Joseph Merrick's affliction may have been caused by a condition known as Proteus syndrome. Find out what it is and what causes it.

Frequently Asked Questions About Forensic Pathology

Forensic pathology is a fascinating field. Take a look at frequently asked questions about forensic pathology to learn more.

Flu Symptom Checker

Flu's symptoms, from body aches to cough and fever, are legendary. But what causes all that misery? Look below to find out why you feel so awful.

Frequently Asked Questions About Neurofibromatosis

Neurofibromatosis is a genetic disorder that causes tumors to form on nerves throughout the body. Learn more about neurofibromatosis here.

Ultimate Flu Guide

Do you know what happens when the flu hits you? Here is the ultimate guide to the flu.

10 Fallen Stars and Their Toxicology Reports

Fallen stars are tragic, but what their toxicology reports say are shocking. Here are 10 fallen stars and their toxicology reports.

Top 10 Rare Diseases

We'll look at the top 10 rare diseases, some of which you may never have heard of -- and others which you hope you never will again.

20 Diseases You've Probably Never Heard Of

There are many diseases out there you've never heard of. We've put together the top 20 diseases you've probably never heard of that are rare and unusual.

YOU Tips: 5 Ways to Prevent Cancer

The main thing you can do to decrease your chances of cancer is reduce the repetitive injury to your normal cells. See these tips from Dr. Oz and Dr. Roizen to stop cancer before it starts.

10 Celebrity Deaths: The Final Details

Find out the final autopsy details behind some of the worlds biggest name celebrities with 10 celebrity deaths and their final details.

10 Things to Know About Forensic Medicine

Forensic medicine covers a range of fields and professions, from coroners to forensic pathologists and medical examiners. Get insider tips and information on being in forensic medicine.

5 Common Allergens

Can you identify household and common allergens? Recognize common allergens and learn how to deal with their side effects.

The Elephant Man Image Gallery

Joseph Merrick, the "Elephant Man," was the most shockingly disfigured person in history. Parts of his body were grossly enlarged. Check out these images of the Elephant man.

5 Rare Parasites Found in the Human Body

Parasites are common, and many are harmless. But we're willing to bet that you'd go to almost any length to avoid spending time with the five on this list.